UPDATE: Apparently none of the tests ran successfully. I walked away from my computer while the install was running and when I came back I only looked at the bottom line that said Result: PASS.

In reality, it looks like the vast majority of the tests failed. I reran the tests and here is the actual output (I get the same output if I try to resintall the module using CPAN):

/home/user1/.cpan/build/WWW-Mechanize-Firefox-0.71-sk8Ee1[155]> make t
+est
Skip blib/lib/Firefox/Application/API35.pm (unchanged)
Skip blib/lib/Firefox/Application/API36.pm (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/Troubleshooting.pod (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox.pm (unchanged)
Skip blib/lib/Firefox/Application.pm (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/Cookbook.pod (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/DSL.pm (unchanged)
Skip blib/lib/Firefox/Application/API40.pm (unchanged)
Skip blib/lib/HTTP/Cookies/MozRepl.pm (unchanged)
Skip blib/lib/HTML/Display/MozRepl.pm (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/FAQ.pod (unchanged)
Skip blib/lib/WWW/Mechanize/runtests.pl (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/Installation.pod (unchanged)
Skip blib/lib/WWW/Mechanize/Firefox/Examples.pm (unchanged)
PERL_DL_NONLAZY=1 /usr/bin/perl.exe "-MExtUtils::Command::MM" "-e" "te
+st_harness(0, 'blib/lib', 'blib/arch')" t/00-load.t t/01-mech-destroy
+.t t/47-mech-memleak2.t t/47-mech-ref-memleak.t t/47-mech-simplest.t 
+t/48-mech-launch.t t/49-mech-get-file.t t/49-mech-nav.t t/49-mech-reu
+se.t t/50-allow-js.t t/50-app-new.t t/50-app-profile.t t/50-click.t t
+/50-follow-link.t t/50-form-with-fields.t t/50-form2.t t/50-load-and-
+load.t t/50-mech-activateTab.t t/50-mech-bufsize.t t/50-mech-closeTab
+.t t/50-mech-content.t t/50-mech-ct.t t/50-mech-encoding.t t/50-mech-
+error.t t/50-mech-event.t t/50-mech-forms.t t/50-mech-get-nocache.t t
+/50-mech-get.t t/50-mech-multi-event.t t/50-mech-new-dsl.t t/50-mech-
+new-with-tab.t t/50-mech-new.t t/50-mech-save-dialog.t t/50-mech-set-
+fields-875912.t t/50-mech-status.t t/50-popup.t t/50-rt65615.t t/50-t
+ick.t t/51-click_button.t t/51-click_js.t t/51-form-number-blakew.t t
+/51-mech-field.t t/51-mech-form-with-fields.t t/51-mech-links.t t/51-
+mech-navigation.t t/51-mech-sandbox.t t/51-mech-set-content.t t/51-me
+ch-submit.t t/52-frame-document.t t/52-frame-event.t t/52-mech-api-fi
+nd_link-frames.t t/52-mech-api-find_link.t t/52-mech-xpath.t t/52-sel
+ector-frames.t t/52-selector-noframes.t t/52-selector-relative.t t/53
+-mech-capture-js-error.t t/55-basic-auth.t t/60-mech-cookies.t t/60-m
+ech-custom-headers.t t/65-is_visible.t t/65-mech-meta.t t/65-set_visi
+ble.t t/70-download-url.t t/70-mech-png.t t/70-real-status.t t/70-rt7
+0106-reload.t t/70-rt71216.t t/70-tag-team.t t/70-two-instances.t t/7
+0-urlbar.t t/75-save_url-cookies.t t/99-changes.t t/99-examples.t t/9
+9-manifest.t t/99-pod.t t/99-todo.t t/99-unix-text.t t/99-versions.t 
+t/rt65615.t t/rt78706.t t/select.t t/mechanize/autocheck.t t/mechaniz
+e/content.t
t/00-load.t ....................... 1/1 # Testing WWW::Mechanize::Fire
+fox 0.71, Perl 5.014002
# Carp 1.26
# Config <unknown>
# DynaLoader 1.13
# Encode 2.49
# Encode::Alias 2.16
# Encode::Config 2.05
# Encode::Encoding 2.05
# Exporter 5.67
# Exporter::Heavy 5.67
# Fcntl 1.11
# File::Basename 2.82
# Firefox::Application 0.71
# HTML::Selector::XPath 0.15
# HTTP::Cookies 6.01
# HTTP::Cookies::MozRepl 0.71
# HTTP::Cookies::Netscape 6.00
# HTTP::Date 6.02
# HTTP::Headers 6.00
# HTTP::Headers::Util 6.03
# HTTP::Message 6.03
# HTTP::Response 6.03
# HTTP::Status 6.03
# JSON 2.53
# JSON::XS 2.32
# List::Util 1.27
# MIME::Base64 3.13
# MozRepl::RemoteObject 0.36
# MozRepl::RemoteObject::Methods 0.36
# PerlIO 1.07
# Scalar::Util 1.27
# Storable 2.27
# Test::Builder 0.98
# Test::Builder::Module 0.98
# Test::More 0.98
# Time::HiRes 1.9725
# Time::Local 1.2000
# URI 1.60
# URI::Escape 3.31
# WWW::Mechanize::Firefox 0.71
# WWW::Mechanize::Link <unknown>
# XSLoader 0.13
# attributes 0.14
# base 2.16
# bytes 1.04
# common::sense 3.6
# constant 1.25
# overload 1.13
# parent 0.225
# re 0.18
# strict 1.04
# utf8 1.09
# vars 1.02
# warnings 1.12
# warnings::register 1.02
t/00-load.t ....................... ok   
t/01-mech-destroy.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/47-mech-memleak2.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/47-mech-ref-memleak.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/47-mech-simplest.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/48-mech-launch.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/49-mech-get-file.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/49-mech-nav.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/49-mech-reuse.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-allow-js.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-app-new.t .................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-app-profile.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-click.t ...................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-follow-link.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-form-with-fields.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-form2.t ...................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-load-and-load.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-activateTab.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-bufsize.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-closeTab.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-content.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-ct.t .................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-encoding.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-error.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-event.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-forms.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-get-nocache.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-get.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-multi-event.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-new-dsl.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-new-with-tab.t .......... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-new.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-save-dialog.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-set-fields-875912.t ..... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-mech-status.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-popup.t ...................... skipped: Opening windows are not y
+et tracked
t/50-rt65615.t .................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/50-tick.t ....................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-click_button.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-click_js.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-form-number-blakew.t ......... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-field.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-form-with-fields.t ...... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-links.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-navigation.t ............ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-sandbox.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-set-content.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/51-mech-submit.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-frame-document.t ............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-frame-event.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-mech-api-find_link-frames.t .. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-mech-api-find_link.t ......... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-mech-xpath.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-selector-frames.t ............ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-selector-noframes.t .......... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/52-selector-relative.t .......... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/53-mech-capture-js-error.t ...... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/55-basic-auth.t ................. skipped: presetting auth does not 
+work yet
t/60-mech-cookies.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/60-mech-custom-headers.t ........ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/65-is_visible.t ................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/65-mech-meta.t .................. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/65-set_visible.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-download-url.t ............... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-mech-png.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-real-status.t ................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-rt70106-reload.t ............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-rt71216.t .................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-tag-team.t ................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-two-instances.t .............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/70-urlbar.t ..................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/75-save_url-cookies.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/99-changes.t .................... # Checking for version 0.71
t/99-changes.t .................... ok   
t/99-examples.t ................... ok    
t/99-manifest.t ................... ok   
t/99-pod.t ........................ ok     
t/99-todo.t ....................... ok     
t/99-unix-text.t .................. ok     
t/99-versions.t ................... skipped: File::Slurp needed for te
+sting
t/mechanize/autocheck.t ........... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/mechanize/content.t ............. skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/rt65615.t ....................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/rt78706.t ....................... "my" variable $result masks earlie
+r declaration in same scope at t/rt78706.t line 30.
t/rt78706.t ....................... skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
t/select.t ........................ skipped: Couldn't connect to MozRe
+pl: command timed-out at /home/user1/perl5/lib/perl5/MozRepl/Client.p
+m line 186
All tests successful.
Files=84, Tests=97, 870 wallclock secs ( 0.27 usr  0.22 sys + 21.66 cu
+sr 22.63 csys = 44.77 CPU)
Result: PASS
[download]

Given the above, it appears my perl script is never connecting to mozrepl. As I said previously, I have verified that mozrepl is running and can connect to it using "telnet localhost 4242".

Does anyone have any ideas?